Simple. What went to the TV now goes to the TV Card.
Changing channels is a problem. Look for an IRBLASTER with http://www.google.com
I have Giga Pocket's TV Tuner on my Sony Vaio. I have basic cable connected to the back of my computer. Now I would like to find a way to connect my satellite receiver which is in another room to my tuner. I want to be able to record satellite movies to my computer.